Chemical fire-extinguisher with double nozzle.



G. GRAAFF. CHEMICAL FIRE EXTINGUISHEB. WITH DOUBLE NOZZLE. APPLICATION FILED JULY 6, 1907.

91 0,663. Patented Jan.'26, 1909.

CLEMENS GRAAFF, OF BERLIN, GERMANY, ASSIGNOR TO MINIMAX CON SCLIDATED LIMITED, OF LONDON, ENGLAND, AND NEURUPPIN, GERMANY.

CHEMICAL FIRE-EXTING-UISFEB WITH DGUBLE NOZZLE.

Specification oi Letters Patent.

Patented J'an. 26, 1909.

Application filed July 6, 1907. Serial No. 382,531.

To all whom it may concern:

Be it known that I, CLnMENs GRAAFF, a merchant and a subject of the German Ernperor, and a resident of 10/11 Potsdamerstrasse, in the city of Berlin, Kingdom of Prussia and German Em ire, have invented a certain new and usefu Chemical Fire-Extinguisher with Double Nozzle, of which the following is a specification.

This invention has reference to a chemical fire extinguisher, which is adapted for use both in easily accessible as well as in the case of difiicultly accessible seats of fire. With this end in view, the ascending discharge pipe of the fire extinguisher terminates in a stop cock with two nozzles, one of which is provided with a centrally arranged passage while the other nozzle is provided with eccentrically arranged opening. According to the position of the plug of the cook, the ascending discharge pipe is connected either to one or to the other of the nozzles.

Upon the drawing an embodiment of the subject matter of the invention is shown by way of example.

On the drawing :-a is the body part of the fire extinguisher, which in the form of construction shown by way of example, is of conical shape. For the sake of simplicity however only the head part of the fire extinguisher is shown.

12 is the ascending discharge pipe, which is connected to the stop cock 0. The said cock 0 is provided with the two nozzles (Z and e, the former of which is provided with the eccentrically arranged bore or passage f, while the other possesses an eccentrically arranged bore g. The nozzle 6, which is provided with the eccentrically or obliquely arranged assage, is mounted on the side of the hand e h.

As already mentioned, the fire extinguisher is intended to be adapted for use both on easily as well as on diificultly accessible seats of fire. For extinguishing purposes on easily accessible seats of fire the as cending discharge pipe 5 of the fire extinguisher is connected to the nozzle cl by turning the hand wheel i. The manipulation of the fire extinguisher is then identical with the manipulation well known in manually o erated fire extinguishers. In the case of t e extinguishing oi difficultly accessible seats of fire, the ascending discharge pipe I) is connected to the nozzle e. Thus for instance, the fire extinguisher is particularly adapted for use for the purpose of extinguishing fire in the case of conflagrations, caused by short-circuiting or the like in the gear casing, under the car box in electric railways and the like. In the cars of electric railways and the like access is had to the gear by way of comparatively narrow openings, which are closed by lids or flaps and which are situated in the floor of the car. When it is desired, to quench a fire, caused by short-circuiting or the like under the fioor of the car, it is only necessary in my invention, to plunge the head part of the fire extinguisher into the opening in the floor of the car, after having previously placed the ascending discharge i e b in engagement with the nozzle 6, an i am then enabled by means of the inclined bore 9, to direct the jet so as to be parallel to the boards of the floor or to direct it against these from below. Inasmuch as in the case of a fire like that, the head part of the fire extinguisher has to be depressed, while the bottom part is raised, as already indicated, it will be of advantage, to connect the ascending discharge pipe I) to a siphon 7c of suitable construction, by means of which it becomes possible to s rinkle in any desired direction with the re extinguisher, the siphon in the downwardly directed position of the fire extinguisher admitting the extinguishing liquid, required 'for the operation of the fire extinguisher. to

the stop cock 0, without allowing the gases, which constitute the operating fluid for the fire extinguisher, to escape through the discharge pipe I), the entrance opening of which is raised above the liquid, and through one of the nozzles of the fire extinguisher. Of the said siphon only the ends of the legs of the siphon are shown in the drawing for the sake of clearness of illustration.

Evidently the fire extinguisher is not confined to the special purpose referred to of extinguishing fires occurrin in the cars of electric railways, but it is a so adapted for instance for the quenching of fires under pieces of furniture, floors or the like.

What I claim and desire to secure by Letters Patent of the United States is The combination, in a fire extinguisher, of a portable liquid container, with a discharge pipe, a si honing device communicating with said disc arge pipe, a stop cock rigidly connected' with the free end of said discharge Inwitness whereof I have hereunto signed pipe, and two nozzles rigidly connected with my name this 14th day of June 1907, in the and controlled by said stop cock, one of these presence of two subscribing Witnesses. nozzles being provided with an eccentrically 5 arranged passage or bore, while the other noz- Vl itnesses:

zle is provided with an eccentrically arranged HENRY HAsPER, bore, all substantially asset forth. i I WOLDEMAR HAUPT.

V CLEMENS GRAAFF. i 

